123237320 has 16 divisors (see below), whose sum is σ = 277284060. Its totient is φ = 49294912.

The previous prime is 123237313. The next prime is 123237377. The reversal of 123237320 is 23732321.

It can be written as a sum of positive squares in 2 ways, for example, as 119990116 + 3247204 = 10954^2 + 1802^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1540427 + ... + 1540506.

Almost surely, 2^123237320 is an apocalyptic number.

123237320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123237320 is an abundant number, since it is smaller than the sum of its proper divisors (154046740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123237320 is a wasteful number, since it uses less digits than its factorization.

123237320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3080944 (or 3080940 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 123237320 is about 11101.2305624196. The cubic root of 123237320 is about 497.6386253761.

Adding to 123237320 its reverse (23732321), we get a palindrome (146969641).

The spelling of 123237320 in words is "one hundred twenty-three million, two hundred thirty-seven thousand, three hundred twenty".